3 24 evidence for evolution

Launch

Evolution is all around us in society. Pick one example of how you can see the

concept of evolution in society and explain the different levels.

Quiz Results

B1- 80% B2- 80% B3- 80% B5

New Quiz Set-up

Tuesdays will be content quizzes Thursday will be vocab quizzes

Definitions, examples, non-examples

Fossil Evidence

Shows numbers of extinct animals Shows similarities between extinct

animals and animals that are alive today The earth’s layers show a time scale of

species and when they appeared on earth (and when they died out)

Picture of Fossil

Homologous structures

Structures that have the same/similar function that came from a common ancestor

Analogous Structures

Structures that have the same function, but evolved separately.

Ex: The wings in

dinosaur bats and birds

Vestigial Structures (Organs) Organs or parts that seem to have no

longer have a function

Whales have pelvic bones that do not attach to legs

Biochemistry and DNA

When comparing the DNA of one species to another, more similarities are found in species that are more closely related

Embryological Development

Embryos of different species develop in almost identical ways.

Apply your knowledge

How might using anti-bacterial lotions and hand sanitizers be the theory of evolution in action?

YouTube

http://www.youtube.com/watch?v=F1ucXmzcfmI

Vocab

vestigial structure homologous structure analogous structure evolution loss-of-function

mutation gain-of-function

mutation beneficial mutation negative mutation

Theory Creationism/

Intelligent Design heritable mutagen genetic variation somatic mutation germline mutation homologous

chromosome crossing over